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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old May 28th, 2012, 20:02   #1
quartersaw
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Fuel Economy: Passat:44mpg '10 DSW:36MPG :-(,Golf 52MPG
Default Need some AC help....

.....I suddenly heard a loud 'whirring' sound under the hood today. I panicked, and though: Uh oh. 'It's the timing belt' I stopped and checked the belt, and it seemed fine. The AC stopped working. I hear the noise again under hard acceleration from a dead stop. Does this sound like my compressor crapped out, or is there something else going on? I know *nothing* about the AC in these cars. Any advice would be very greatly appreciated. Thanks!
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Old May 28th, 2012, 20:24   #2
pbraunton
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start reading, .....LOL.......

http://forums.tdiclub.com/showthread.php?t=242699
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Old June 1st, 2012, 05:40   #3
quartersaw
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Originally Posted by pbraunton View Post
Looks like this is going to be fun. I'm going to look into repairing the fans. It might be possible to refurb the fans for cheap $.
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Old June 8th, 2012, 09:02   #4
quartersaw
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...Looks like my AC clutch is flagging in the wind. Is this an easy fix?
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Old June 8th, 2012, 09:14   #5
DanG144
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Can you give a more technical description?
It is easy to replace the clutch coil, and plate, harder to replace the pulley and bearing, but still not bad at all.
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Old June 10th, 2012, 06:41   #6
quartersaw
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I can spin the clutch with my finger,and it spins freely.
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Old June 10th, 2012, 07:13   #7
gquenstedt
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The clutch plate is the part on the very front that is held on to the compressor shaft by a 14mm nut. you're saying that part spins freely like the grooves that hold it on the compressor shaft are gone?
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Old June 10th, 2012, 09:19   #8
quartersaw
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Originally Posted by gquenstedt View Post
The clutch plate is the part on the very front that is held on to the compressor shaft by a 14mm nut. you're saying that part spins freely like the grooves that hold it on the compressor shaft are gone?
Feels like there is nothing behind the clutch. I have a 1Z compressor sitting here to compare notes with,and I can hear the internals of the compressor moving, and I feel resistance when I turn the 1Z compressor clutch.
So.........does it look like I need to replace the entire clutch mechanism?
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Old June 10th, 2012, 11:03   #9
gquenstedt
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take the 14mm nut off the front then remove the clutch plate and inspect the splines on the compressor shaft and the clutch plate
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Old June 10th, 2012, 15:28   #10
quartersaw
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take the 14mm nut off the front then remove the clutch plate and inspect the splines on the compressor shaft and the clutch plate
The nut just turns endlessly because I can't find anything to lock down the shaft
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Old June 10th, 2012, 21:00   #11
gquenstedt
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hmm. so the nut turns but the plate stays still?

sounds like the splines are gone probably in the plate.
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Old June 15th, 2012, 12:49   #12
quartersaw
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hmm. so the nut turns but the plate stays still?

sounds like the splines are gone probably in the plate.
Yes.
I bit the bullet,and ordered a remanufactured compressor, and drier.
Should I have bought anything else besides those two items?
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